13146561546 has 16 divisors (see below), whose sum is σ = 26315030208. Its totient is φ = 4378536000.

The previous prime is 13146561541. The next prime is 13146561557. The reversal of 13146561546 is 64516564131.

It is a junction number, because it is equal to n+sod(n) for n = 13146561498 and 13146561507.

It is not an unprimeable number, because it can be changed into a prime (13146561541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904990 + ... + 919401.

It is an arithmetic number, because the mean of its divisors is an integer number (1644689388).

Almost surely, 2^13146561546 is an apocalyptic number.

13146561546 is an abundant number, since it is smaller than the sum of its proper divisors (13168468662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13146561546 is a wasteful number, since it uses less digits than its factorization.

13146561546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825597.

The product of its digits is 259200, while the sum is 42.

The spelling of 13146561546 in words is "thirteen billion, one hundred forty-six million, five hundred sixty-one thousand, five hundred forty-six".